With out this fix the application or device drivers need to add this
module. Otherwise, compilation of the lwIP adaptation layer will fail
for Ethernet devices.

sam0_common: fix sercom_id return value for SERCOM5 (#9875)

dist/tools/pyterm: handle ctrl+d nicely

atmega_common/gpio_init: fix pull-up settings for GPIO_IN_PU

core/byteorder: fix bebuftohs() / htobebufs() on big endian

gnrc_rpl: Pass options length to msg validator

gnrc_rpl: fix zeroing of RPL DIS fields

doc: set SUBGROUPING to NO in riot.doxyfile

boards: sltb001a: add docs

saml21: fix sercom_set_gen for sercom5

sam0_common: correct sercom_set_gen for sercom5. it assumes SERCOM5 GEN clock is in sequence, but is not, need to put a specific if test

net/nanocoap: add generic handling for string-based options

dist/tools/compile_test: fix flake8 issues

vfs/stdio: cleanup STDIO mapping for vfs

edbg.inc.mk: allow flashing with an offset in rom without erasing all ROM

 doc: refactor `hashes` group

- add generic string put and get functions
- add location path and location query options
- add dedicated functions for getting and setting
  URI query, URI path, location query, and location path
  options

boards/stm32f103c8: fix openocd config

make: Introduce periph_gpio_irq feature

core: Mark openocd info variables read-only

Currently the length of the full ICMPv6 packet is passed to the
validator function causing validation failures on valid packets. This
fixes that by passing the length of remaining RPL options of the packet.

The code originally assumed that the location of DIS struct is directly
after the ICMPv6 struct. This is not necessarily true when both structs
are individually allocated by pktbuf. This commit fixes this issue by
directly accessing the location of the DIS struct.